SAN BERNARDINO, CALIFORNIA

Monthly Total Heating Degree Days

(047723)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200408
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 431.00 431.00
1928 290.50 273.50 182.50 121.00 36.50 3.00 0.00 0.00 0.00 a 87.50 225.00 417.50 1637.00
1929 443.50 401.50 252.00 216.50 8.50 15.00 0.00 0.00 0.00 27.50 115.00 206.00 1685.50
1930 423.50 172.50 229.00 77.50 144.50 4.00 0.00 0.00 6.00 47.07 d 171.00 376.00 1651.07
1931 321.50 186.50 h 146.00 48.10 a 1.50 2.68 b 0.00 a 0.00 a 0.00 45.00 328.45 a 469.65 a 1362.88
1932 532.50 391.00 185.00 205.50 103.13 e 60.00 0.50 3.00 12.50 101.50 117.00 529.50 2241.13
1933 526.48 a 412.00 269.50 262.00 204.00 41.00 0.00 0.00 14.00 63.50 167.50 362.91 b 2322.90
1934 339.00 270.00 59.50 h 73.27 d 50.63 a 24.00 k 0.00 0.00 a 19.66 a 47.50 j 242.22 c 365.00 1359.78
1935 475.85 a 328.50 417.47 a 195.00 109.10 e 1.61 b 0.00 c 0.00 0.00 63.50 294.50 380.78 a 2266.30
1936 359.00 363.00 216.50 109.50 22.00 11.50 0.00 0.00 0.00 70.27 a 163.97 a 403.50 1719.23
1937 776.55 a 394.07 a 323.50 145.86 a 50.63 a 7.50 0.00 0.00 g 1.11 c 27.00 191.50 286.50 2204.23
1938 309.50 368.00 343.50 179.48 a 86.50 11.00 0.00 0.00 0.00 61.00 261.50 283.50 1903.98
1939 437.00 476.50 307.00 82.50 55.50 4.00 0.00 0.00 0.50 39.50 f 115.50 216.00 1694.50
1940 343.50 333.50 183.50 133.50 18.00 1.00 1.00 0.00 0.00 57.00 235.50 298.00 1604.50
1941 387.50 263.50 245.50 225.50 23.50 4.00 0.00 1.50 6.50 118.50 178.50 405.50 1860.00
1942 346.50 379.50 299.50 179.50 78.00 1.00 0.00 0.00 2.00 66.50 158.50 f 343.50 1696.00
1943 379.50 240.50 231.50 134.00 34.50 22.00 0.00 0.00 0.00 69.00 165.50 392.31 b 1668.81
1944 435.50 436.00 277.00 229.00 56.00 46.00 0.00 0.00 0.50 16.50 267.50 337.00 2101.00
1945 395.00 331.50 403.00 210.50 87.00 16.50 0.00 0.00 3.50 32.50 230.50 411.50 2121.50
1946 392.50 384.00 302.50 98.50 74.00 0.00 0.00 0.00 0.00 88.00 294.50 328.50 1962.50
1947 409.89 d 230.50 213.00 114.00 42.00 4.00 0.00 0.00 0.00 43.50 254.00 395.00 1705.89
1948 286.50 403.00 408.50 192.00 93.00 16.00 0.00 0.00 4.50 29.50 i 234.50 488.00 2126.00
1949 698.00 449.50 353.00 101.00 97.50 1.50 0.00 0.00 0.00 100.00 73.00 405.50 2279.00
1950 557.50 236.00 246.50 101.00 117.50 18.50 0.00 0.00 1.50 9.00 133.50 187.50 1608.50
1951 412.50 348.00 277.85 d 152.50 81.00 9.00 0.00 0.00 0.00 40.00 214.00 459.50 1994.35
1952 497.00 336.50 396.50 143.50 13.50 17.50 0.00 0.00 6.00 7.00 321.00 431.00 2169.50
1953 264.00 314.00 268.00 215.50 113.50 15.50 0.00 0.00 0.50 50.00 138.50 286.00 1665.50
1954 392.50 136.00 332.00 95.50 24.50 11.50 0.00 0.00 0.00 53.50 102.50 379.50 1527.50
1955 487.00 354.50 227.50 190.50 88.35 a 9.00 0.00 0.00 3.00 61.50 207.50 354.50 1983.35
1956 335.50 429.00 217.00 187.76 a 53.50 0.00 0.00 0.00 0.00 76.00 166.50 248.50 1713.76
1957 456.50 202.00 199.00 141.50 96.50 3.00 0.00 0.00 0.00 64.50 278.50 273.00 1714.50
1958 316.50 241.00 348.00 144.00 23.50 0.00 0.00 0.00 0.00 21.70 a 210.50 234.00 1539.20
1959 298.00 283.50 g 120.50 39.00 40.00 0.00 0.00 0.00 3.50 32.00 136.50 327.00 996.50
1960 485.15 a 371.00 178.50 104.50 54.77 a 0.00 0.00 0.00 0.00 50.00 295.50 400.00 1939.42
1961 327.00 253.00 301.50 121.00 70.50 6.00 j 0.00 0.00 3.00 81.00 271.00 412.50 1840.50
1962 386.00 396.00 431.50 81.00 120.50 19.50 0.00 0.00 0.00 52.00 215.50 327.50 2029.50
1963 468.50 136.50 318.50 252.50 42.50 9.00 0.00 0.00 0.00 23.00 0.00 z 359.50 1610.00
1964 447.00 343.00 327.50 198.50 100.00 12.50 0.00 0.00 0.00 11.50 319.50 412.00 2171.50
1965 350.50 300.50 299.50 228.00 84.00 30.00 0.00 0.00 0.50 17.50 215.00 400.00 1925.50
1966 429.00 374.50 203.50 67.00 30.50 3.50 0.00 0.00 0.00 16.00 206.00 367.00 1697.00
1967 383.50 203.50 243.00 374.50 96.50 44.00 0.00 0.00 0.00 7.50 107.00 447.50 1907.00
1968 384.00 160.00 186.00 142.00 53.50 15.00 0.00 0.00 2.00 17.00 173.00 460.50 1593.00
1969 324.00 404.50 308.00 131.00 49.00 16.50 3.00 0.00 0.00 77.50 155.00 352.50 1821.00
1970 377.50 214.00 242.00 215.00 36.00 10.00 0.00 0.00 0.00 52.50 176.50 428.00 1751.50
1971 350.00 302.50 217.00 200.00 108.50 18.00 0.00 0.00 7.50 144.50 228.00 498.00 2074.00
1972 421.00 221.00 87.50 104.00 58.50 0.00 0.00 0.00 0.00 84.50 256.00 417.50 1650.00
1973 328.00 g 276.00 373.00 127.50 20.00 9.00 0.00 0.00 0.00 20.00 241.50 315.00 1382.00
1974 388.00 270.00 232.50 100.50 45.50 0.00 0.00 0.00 0.00 59.50 160.50 346.50 1603.00
1975 310.00 294.50 304.00 285.50 59.00 15.50 0.00 0.00 0.00 64.50 200.00 272.50 1805.50
1976 243.00 269.00 251.50 186.00 18.00 4.50 0.00 0.00 0.00 15.50 103.50 275.50 1366.50
1977 317.50 145.00 323.50 60.50 123.50 f 0.00 b 0.00 0.00 0.00 16.50 90.00 199.50 1152.50
1978 310.00 266.50 175.00 153.50 27.00 0.00 0.00 0.00 0.00 10.50 0.00 z 447.50 1390.00
1979 470.50 336.00 264.50 89.50 42.50 0.00 0.00 a 0.00 0.00 21.50 180.00 221.50 1626.00
1980 237.00 159.50 265.50 105.50 112.50 14.00 0.00 0.00 0.00 22.50 111.00 167.50 1195.00
1981 215.00 169.50 224.48 b 66.72 a 15.00 0.00 a 0.00 0.00 0.00 a 53.00 140.50 240.00 1124.21
1982 422.00 227.00 307.50 131.50 35.50 5.00 0.00 0.00 3.50 16.50 241.00 359.50 1749.00
1983 254.50 236.00 233.00 182.00 34.50 0.00 z 0.00 0.00 3.50 0.50 190.50 286.50 1421.00
1984 230.50 191.50 93.00 98.50 7.00 0.00 0.00 0.00 0.00 43.00 225.00 380.00 1268.50
1985 362.50 255.00 276.50 59.00 20.00 6.50 0.00 0.00 7.50 30.50 296.00 303.50 1617.00
1986 207.50 259.50 169.50 112.50 36.50 0.00 0.00 0.00 c 38.50 40.50 116.50 319.00 1300.00
1987 416.00 295.00 272.00 43.50 25.00 0.00 0.00 0.00 0.00 29.00 239.50 505.00 1825.00
1988 377.50 193.50 171.00 134.48 a 57.00 9.50 0.00 0.00 5.00 9.50 232.00 412.00 1601.48
1989 450.50 373.00 174.50 64.50 44.50 4.00 0.00 0.00 6.00 51.00 163.00 323.00 1654.00
1990 369.50 360.00 230.50 78.50 50.00 1.00 0.00 0.00 0.00 3.50 188.50 486.50 1768.00
1991 371.00 151.50 419.00 130.50 76.00 6.00 0.00 0.00 0.00 66.00 166.50 361.00 1747.50
1992 378.50 262.00 280.50 52.50 3.50 4.00 0.00 0.00 0.00 14.00 180.00 473.50 1648.50
1993 414.00 326.50 125.50 37.00 1.50 13.50 0.00 0.00 0.00 16.50 192.50 366.00 1493.00
1994 256.00 346.50 161.00 105.00 51.50 0.00 0.00 0.00 0.00 47.00 377.00 370.00 1714.00
1995 390.00 136.00 209.50 131.00 129.50 27.50 0.00 0.00 0.00 12.00 44.50 286.50 1366.50
1996 274.00 212.50 191.50 44.00 8.00 1.00 0.00 0.00 0.00 80.00 169.00 304.00 1284.00
1997 335.50 235.50 88.00 89.00 0.00 2.00 0.00 0.00 0.00 28.00 167.00 0.00 z 945.00
1998 334.50 337.50 0.00 z 203.50 0.00 z 0.00 z 0.00 0.00 z 0.00 z 0.00 z 200.00 334.00 1409.50
1999 0.00 z 0.00 z 204.50 i 108.50 j 40.30 a 23.28 a 0.00 0.00 0.00 0.55 c 110.00 261.43 a 435.56
2000 235.50 240.50 186.00 56.38 a 5.00 0.00 0.00 0.00 a 0.00 57.50 257.07 a 0.00 z 1037.95
2001 380.27 a 346.89 a 184.00 167.59 a 1.66 c 0.00 0.00 0.00 h 0.00 a 2.67 b 61.00 h 266.00 j 1083.07
2002 320.50 175.00 191.50 105.50 12.00 u 0.00 0.00 0.00 0.50 68.50 96.00 i 266.50 k 861.50
2003 52.00 p 288.75 d 123.00 k 107.50 p 17.50 s 18.50 g 0.00 m 0.00 0.00 z 8.50 105.50 p 148.00 r 297.25
2004 260.50 f 237.00 i 33.50 n 62.50 j 0.00 k 0.00 l 0.00 q 0.00 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 379.87 290.61 252.00 137.37 55.54 9.60 0.06 0.06 2.20 43.66 197.66 355.73 1749.33
S.D. 98.73 86.52 80.81 66.01 40.33 12.14 0.37 0.39 5.55 30.53 67.23 82.57 277.71
SKEW 1.20 -0.02 0.23 0.81 0.94 2.00 7.23 6.66 4.51 0.74 0.19 -0.18 0.05
MAX 776.55 476.50 431.50 374.50 204.00 60.00 3.00 3.00 38.50 144.50 377.00 529.50 2322.90
MIN 207.50 136.00 87.50 37.00 0.00 0.00 0.00 0.00 0.00 0.50 44.50 167.50 1124.21
NO YRS 73 73 72 74 72 71 75 73 74 72 70 72 56